Table 2 Adjusted odds ratios (OR), 95% confidence interval (CI) for odds ratios and P-values from the final multivariate model of the relationship between demographic determinants and acute gastrointestinal illness in randomly selected residents of two Canadian study areas, 2001 to 2003 (N = 5,732)
From: Demographic determinants of acute gastrointestinal illness in Canada: a population study
Variable | OR | CI for OR | P-value |
|---|---|---|---|
Intercept | 0.15 | (0.10, 0.22) | <0.001 |
Income | Â | Â | 0.819 a |
   <$20 000b | 1.00 | - | - |
   >$20 000 to <$40 000 | 1.23 | (0.75, 2.07) | 0.390 |
   >$40 000 to <$60 000 | 1.06 | (0.64, 1.74) | 0.827 |
   >$60 000 to <$80 000 | 1.26 | (0.75, 2.09) | 0.382 |
   >$80 000 | 1.21 | (0.73, 1.99) | 0.451 |
Age (years) | Â | Â | <0.001 a |
   0–9 | 1.50 | (1.14, 1.96) | 0.003 |
   10–14 | 1.23 | (0.84, 1.79) | 0.290 |
   15–19 | 0.85 | (0.52, 1.38) | 0.510 |
   20–24 | 1.48 | (1.03, 2.14) | 0.035 |
   25–64 b | 1.00 | - | - |
   65–69 | 0.51 | (0.33, 0.80) | 0.003 |
   70–74 | 0.30 | (0.16, 0.56) | <0.001 |
   75–84 | 0.36 | (0.21, 0.61) | <0.001 |
   >84 | 0.27 | (0.08, 0.89) | 0.031 |
Gender | Â | Â | <0.001a |
   Male b | 1.00 | - | - |
   Female | 2.46 | (1.54, 3.93) | <0.001 |
Income*Gender Interaction | Â | Â | 0.017 a |
   >$20 000 to <$40 000 (Female) | 0.46 | (0.25, 0.84) | 0.011 |
   >$40 000 to <$60 000 (Female) | 0.50 | (0.28, 0.91) | 0.022 |
   >$60 000 to <$80 000 (Female) | 0.56 | (0.30, 1.02) | 0.059 |
   >$80 000 (Female) | 0.35 | (0.19, 0.64) | <0.001 |